RE: Fluke 9010a just died

I've tried doing checksums and comparing them with the values on page 4-10
in the manual. In the manual they are referred to as signatures and they
give the memory address of each rom. I'm not getting the same values, so
maybe you can send me what software you have and I'll compare them that way.

What type of eproms do these use in case I need to burn a new set?

Thanks.

Matt

Have you tried reading the ROM checksum with the Series 90 and comparing it
with an archived set? I can email you a set for comparison, I have found
that ROM can knock out a system if it does not release when unselected.

John :-#)#

At 05:55 PM 10/04/01, you wrote:
>Would anyone care to take a guess on this one? Even if your guess might be
>wrong, maybe it'll spark some ideas.
>
>Matt
>
>-----Original Message-----
>From: Matt Rossiter - Verio Southern California
>[mailto:matt@veriosc.com]
>Sent: Saturday, September 29, 2001 10:25 AM
>To: TechToolsList@flippers.com
>Subject: Fluke 9010a just died
>
>
>I don't know if you guys have this same experience, but I haven't touched
>my 9010a for months. I went to fix my Midway Double Play last night and
>for some reason now this tester won't work. Just for no reason at
>all. AUUUGH!
>
>Fortunately, I happen to have my Fluke 90 series Z80 tester. I'm hoping
>someone on this list has had to become familiar with the 9010a service
>manual. If you feel like giving me a hand, you might want to refer to
>page 4-32 - 4-35.
>
>Here's the testing I've done so far.
>
>Symptoms - 9010a powers up but only displays a zero with an 'x' in the
>middle. The keyboard doesn't work except when toggling the probe pulses
>high or low.
>
>9010a self test - won't respond to key presses.
>
>90 series uP tests:
>Bus Test - Pass
>Ramp Test - Pass
>Memory Test - C000-FFFF Pass
>Memory Soak - C000-FFFF Fails - Hmmmmm. Is this normal?
>
>I/O verify - writes data to certain I/O addresses and then reads the
>data to check to see if it comes back the same.
>
>The Pod/Probe PIA section passes the I/O verify test (100C0 - 100C3)
>The Display/Keyboard section Fails the I/O verify test (10080-10081).
>The Magnetic Tape controller also fails (100A0 - 100A1).
>
>What appears to be happening is whatever gets written to the
>display/keyboard assembly will not get read back correctly.
>
>Here's something weird. If I do a write @ 10081 Data=00 (reset command to
>the display/keyboard) and loop it for a while, then immediately reset the
>"mainframe" (as they like to call it). For about a second the Normal
>display comes up and then blanks out.
>
>I can also send commands to the magnetic tape controller and it will
>rewind. So it seems like the 'writes' are all working, the reads are
>screwy.
>
>I'm mainly concerned about the keyboard/display assembly. Does anyone
>have any advice on this one? Could I have a bad ram chip somewhere? I
>already tried replacing the Z80 microprocessor.
>
>Thanks...
>
>
>Matt
>
>
>
>
>
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Received on Fri Oct 05 08:01:34 2001